High-Precision GPS & DGPS Land Survey Services
Millimeter-level geodetic positioning using multi-frequency RTK GNSS & differential satellite telemetry.
What is a GPS & DGPS Precision Land Survey & Why is it Critical?
GPS (Global Positioning System) and DGPS (Differential Global Positioning System) land surveying represent the pinnacle of modern geospatial engineering. At Odyssey Survey, we utilize cutting-edge multi-constellation GNSS receivers (GPS, GLONASS, Galileo, BeiDou) coupled with Real-Time Kinematic (RTK) corrections to achieve sub-centimeter horizontal and vertical precision on every project.
Traditional surveying methods are often susceptible to cumulative line-of-sight errors, dense foliage interference, and extensive setup delays across undulating terrains. DGPS overcomes these limitations by establishing a stationary base receiver over an established benchmark while roaming units collect thousands of spatial coordinate points in real time.
Whether establishing geodetic control networks for large infrastructure corridors, mapping expansive agricultural parcels, or setting boundary benchmarks for municipal approval, Odyssey Survey delivers peerless georeferenced datasets in Universal Transverse Mercator (UTM) and custom local coordinate systems.
When is a GPS / DGPS Survey Required?
Our 4-Stage Precision Methodology
How Odyssey Survey guarantees sub-centimeter geodetic precision on every project.
Reconnaissance & Benchmark Identification
Our survey engineers identify National Geodetic Benchmarks (GTS) or establish high-precision primary control monuments using static GNSS logging.
Dual-Frequency Base & Rover RTK Setup
We deploy multi-channel DGPS receivers utilizing UHF radio or cellular NTRIP caster feeds to broadcast instant differential corrections to field rovers.
High-Density Spatial Data Acquisition
Field crews systematically capture boundary vertices, physical structures, terrain elevations, and utility markers with real-time positional quality checks.
Post-Processing & Geodetic Network Adjustment
Raw RINEX satellite data is adjusted using scientific baseline software to eliminate atmospheric delays and ensure absolute global accuracy.
Key Advantages of Choosing Odyssey Survey
Eliminates boundary ambiguity with repeatable, globally referenced latitude, longitude, and ellipsoidal elevation coordinates.
Covers hundreds of acres in a single day, reducing on-site survey time by up to 70% compared to conventional traverse methods.
Deliverables are exported directly into AutoCAD (DWG/DXF), ArcGIS Shapefiles, GeoJSON, and CSV coordinate tables ready for design teams.
Complies fully with government revenue department georeferencing standards and municipal land registry requirements.
Deliverables Package
- AutoCAD (.DWG / .DXF) Georeferenced Boundary & Feature Drawings
- ESRI Shapefiles (.SHP) and GeoJSON spatial attribute datasets
- Point Coordinate Schedule (Easting, Northing, Elevation, Feature Code in CSV/Excel)
- Geodetic Control Network Adjustment & Baseline Precision Report
- Official Licensed Surveyor Stamped & Signed Survey Certificate
Precision Equipment Used
- Trimble R12i GNSS Receiver with ProPoint Engine
- Leica GS18 T RTK GNSS Rover with Tilt Compensation
- CHCI93 IMU-RTK GNSS Base & Rover Stations
- Trimble Business Center (TBC) & Leica Infinity Geodetic Processing Suites
GPS / DGPS Survey FAQs
Expert answers regarding gps / dgps survey processes, accuracy tolerances, and workflows.
Book a Precision GPS / DGPS Survey in Your Area
Our licensed surveyor crews are ready to deploy within 24 hours. Get a comprehensive site evaluation and verified CAD deliverables.